... Raw Material:hot dipped galvanized steel,cold rolled steel,Alu-Zinc steel,GI,2,Pattern: can be custonmized according to cusomers requirements3,suitable for ... ,can be roll forming5,protective film can be provided according to customers requirements6,surface structure: regular spangle ,skin-passed spangle , ... constrction,household appliances and other industries fields. ppgi and hdgi steel coil